Shareholders' Equity (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		May 04, 2018	May 05, 2017
Shareholders' Equity
Reduction in retained earnings		$ 703	$ 1,198
Share Repurchases
Share repurchases, value	[1]	$ 758	$ 1,264
Share repurchases, shares		8.8	15.4
Share Repurchase Program
Share Repurchases
Share repurchases, value	[1]	$ 750	$ 1,250
Share repurchases, shares		8.7	15.2
Shares Withheld from Employees
Share Repurchases
Share repurchases, value	[1]	$ 8	$ 14
Share repurchases, shares		0.1	0.2

[1] Reductions of $703 million and $1.2 billion were recorded to retained earnings, after capital in excess of par value was depleted, for the three months ended May 4, 2018 and May 5, 2017, respectively.